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Notes from running the work

Playbooks and plain opinions on quoting, scheduling, getting paid, and the tools behind them — written by the founder, who runs a contracting and real estate business on Stairkey every day.

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For Contractors11 min read · August 23, 2026

Contractor expenses on the T2125: what actually goes on which line

Where a contractor's real costs land on CRA Form T2125 — subcontractors, job materials, tools, vehicle, home office — and the mis-files that cost the most.

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For Contractors8 min read · July 2, 2026

How to estimate a renovation job: the six-step process that protects your profit

A working contractor's process for estimating renovation jobs: the walkthrough, the material takeoff, labor priced from crew-days, overhead and profit, and a contingency you can defend.

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For Contractors6 min read · June 26, 2026

Progress billing for contractors: get paid as the work gets done

Waiting until the end to invoice is how contractors run out of cash mid-job. Here's how progress billing works — milestones, percentage-complete, retainage — and how to bill a job in stages without a billing department.

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For Contractors5 min read · June 26, 2026

The construction punch list: how to close out a job and get the last cheque

The last 2% of a job causes most of the friction over final payment. Here's what a construction punch list is, what each item needs, and how a rolling list closes the job out faster.

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For Contractors5 min read · June 26, 2026

Estimate vs quote vs bid: what's the difference, and which one to send

Estimate, quote, and bid get used interchangeably — but they mean different things, and one of them can become a binding contract. Here's the difference, and which to send when.

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For Contractors6 min read · June 25, 2026

Job costing for contractors: how to know which jobs actually make you money

Two jobs can bill the same and earn wildly different money. Here's how job costing for contractors tracks labor, materials, and overhead so you see real profit per job.

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For Contractors6 min read · June 23, 2026

Change orders: how to stop eating the cost of scope creep

Every contractor has swallowed an out-of-scope cost they should have billed. Here's what a construction change order actually is, the six fields it needs, and how to keep scope creep from wrecking your job costing.

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For Real Estate5 min read · June 22, 2026

Renovation costs every realtor should understand before they list

Agents who can speak credibly about what a renovation costs price homes better and win more listings. Here's the structure-and-finishes knowledge that sets you apart — and how to put a real number behind it.

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For Real Estate4 min read · June 22, 2026

After Repair Value (ARV), explained for agents and investors

After Repair Value is what a property is worth once the work is done. Here's how ARV works, the rule of thumb investors use, and why your repair estimate makes or breaks the whole calculation.

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For Contractors4 min read · June 19, 2026

Markup vs margin: the contractor math that decides whether you make money

Confusing markup and margin is one of contracting's costliest mistakes. The difference in plain numbers — and how to price so planned profit is profit you keep.

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For Contractors5 min read · June 18, 2026

What goes into a detailed contractor quote — and why clients say yes to it

Clients pick the contractor whose quote spells out the work. What a detailed quote should include, why the detail wins the job, and how to produce one fast.

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Founder Story5 min read · June 13, 2026

Why I built Stairkey: a contractor and realtor who got tired of his own paperwork

I've run a contracting business since 2014 and added a real estate licence in 2018. The work was never the problem — the paperwork was. So I built the fix.

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For Contractors5 min read · June 12, 2026

Drowning in contractor paperwork? Turn days of admin into minutes

The build is the easy part — quoting, invoicing, and follow-up eat your evenings. How contractor business management software turns days of admin into minutes.

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For Service Businesses4 min read · June 11, 2026

Stop double-booking the crew: scheduling and billing for service businesses

The best revenue, the worst scheduling. How scheduling software for service businesses catches conflicts early and bills only the visits you complete.

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For Real Estate4 min read · June 10, 2026

Never miss a critical date: transaction management for busy agents

Offers, showings, conditions, and critical dates are where deals slip. How real estate transaction management software keeps every deal — and client — on track.

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